Troy-Bilt 12214-5.5HP - Manual (Page 20)

Sections: Maintenance
A WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for alt
parts to come to a complete stop, disconnect spark plug wire and move wire away from spark
plug. Failure to follow these instructions can result in serious personal Injury or
property damage.
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B. To Drain the Transmission Gear Oil:
The transmission gear oil does not need
to be changed unless it has been contam­
inated with dirt, sand or meta! particles.
A
DANGER
Gasoline is highly flammable and Its
vapors are explosive. Follow these
safety practices to prevent personal
injury or property damage from fire or
explosion.
• Allow the engine and muffler to cool
for at least two minutes before draining
the tiller’s gasoline tank.
• Do not allow open flames, sparks,
matches or smoking in the area.
• Wipe away spills and push tiller away
from spilled fuel.
• Use only an approved fuel container
and store it safely out of the reach of
children.
• Do not store gasoline in an area
where its vapors could reach an open
flame or spark, or where ignition
sources are present (such as hot water
and space heaters, furnaces, clothes
dryers, stoves, electric motors, etc.).
1. Drain the gasoline from the fuel tank or
run the engine until the fuel tank is empty.
See “DANGER” statement above.
2. Drain the motor oil from the engine.
3. Remove four screws (B, Figure 5-2) and
remove transmission cover and gasket.
4. Remove the left-side wheel.
5. Tilt the left-side wheel shaft into a
drain pan and drain the gear oil through
the top of the transmission.
6. Reinstall the wheel, Install a new cover
gasket (do not reuse old gasket) and
reinstall the transmission cover.
7. Refill transmission using GL-4 gear oil
(SAE 85W-140 orSAE140).
8. Refill engine with motor oil and refill
fuel tank with gasoline.
TINES
The tines will wear with use and should
be inspected at the beginning of each
tiliing season and after every 30 operating
hours. The tines can be replaced individ­
ually or as a complete set. See the Parts
List in this Manual for tine identification
and ordering information.
A WARNING
This is a CRT (counter-rotating-tine)
tiller and its tines must be mounted in
the direction shown in Figure 5-3. If
mounted with curves in the opposite
direction, tiller will dig poorly and be
more likely to run backward.
Failure to comply could result in
personal injury or property damage.
NOTE: Remove the tine hood before
removing a tine hoider or individual tines.
Remove the two sets of screws at the
front and the rear of the hood and lift off
the hood. Replace the hood securely
after changing a tine or tine holders.
A. Tine Inspection
With use, the tines will become shorter,
narrower and pointed. Badly worn tines
will result in a loss of tiiiing depth and will
leave untilled gaps in the freshly turned
soil.
B. Removing and Installing
Tine Assemblies
1. A tine assembly consists of three tines
mounted on a tine holder. To remove the
assembly, remove the nut (A, Figure 5-3)
and screw (B) that secure the tine holder
to the tine shaft. If necessary, use a
rubber mallet to tap the tine assembly off
the tine shaft.
2. Inspect the tine shaft for rust or rough
spots and remove using a fine grade
sandpaper. Apply a light coating of
grease to the tine shaft.
3. Installing the tine assembly is simply
the reverse of its removal.
Be sure all the
tine cutting edges face so they wiii enter
the soil first when the tiller is moving
forward- this means the cutting edge on
the top of each tine faces toward the
operator position.
Tighten hardware,
C. Removing and Installing Single Tines
1. To remove a single tine, remove the
two screws (C, Figure 5-3) and nuts (D)
that secure the tine to its tine holder. If
needed, use penetrating oil on the nuts.
2. When installing individual tines, do so
in the reverse order from which they were
removed. The two sets of
inhoardtines
are installed so one set faces toward the
transmission and the other faces away
from it. The single
outboardXm set
faces toward the transmission housing.
Also be sure the cutting edge at the top
of each tine faces toward the operator
position. (See Figure 5-3.)
CHECKING AND ADJUSTING
FORWARD DRIVE BELT TENSION
Maintaining correct tension on the
forward drive belt is important to good
tiliing performance and long belt life.
A loose belt will slip on the engine and
transmission pulleys and cause the tines
and wheels to slow down - or stop com­
pletely - even though the engine is
running at full speed. A belt that is too
tight can result in unintentional tine
movement when the clutch bail is in the
Neutral (released) position.
Also check the belt for cracks, cuts or
frayed edges and replace it as soon as
possible.
• Check belt tension after the first two
hours of break-in operation (new belt).
• Check belt tension after every 10
operating hours.
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